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Monday, 5 June 2017

Malware spam: "John Miller Limited" / "Invoice"

This spam pretends to come from John Miller Ltd (but doesn't) and comes with a malicious payload. The domain mentioned in the email does not match the company being spoofed, and varies from message to message.

Attached is a PDF file with a name similar to A4 Inv_Crd 914605.pdf - opening it up (NOT recommended) displays something fairly minimal.

The attachment currently has a detection rate of about 9/56. As is common with some recent attacks, the PDF actually contains an embedded Microsoft Office document. Hybrid Analysis shows the malicious file downloading a component from cartus-imprimanta.ro/8yfh4gfff (176.126.200.56 - HostVision SRL, Romania) although other variants possibly exist.

A file is dropped (in the HA report called miniramon8.exe) at detection rate of 11/61. According to the Hybrid Analysis report, that attempts tom communicate with the following IPs: